Process for making soil release polymer granules

Details Process for making soil release polymer granules Process for making soil release polymer granules

1996-08-08

1997-12-23

Yoon, Tae

Compositions

Durable finishes for textile materials, or processes of...

Oil or water repellent or soil resistant or retardant

252 861, 524376, 524559, 523334, 510299, 510517, 510528, C11D 1722, C08K 506, C08K 3106

Patent

active

057003866

ABSTRACT:
The subject invention involves processes for making granular compositions comprising soil release polymers, the polymers comprising at least about 10% of substantially linear esters having a backbone; the esters being uncapped or end-capped on one or both ends of the backbone; the esters comprising in their backbones oxyalkyleneoxy units and hydrophobic aryldicarbonyl units; the esters having a molecular weight of from about 500 to about 20,000; the polymers if in solid state having the tendency when exposed to moisture to spontaneously rearrange from an amorphous form which is readily soluble in water to a crystalline form which is relatively insoluble in water; the process comprising the following steps:

REFERENCES:
patent: 4020015 (1977-04-01), Bevan
patent: 4877896 (1989-10-01), Maldonado et al.
patent: 4999128 (1991-03-01), Sonenstein
patent: 5041230 (1991-08-01), Borcher, Sr. et al.
patent: 5182043 (1993-01-01), Morall et al.
patent: 5196133 (1993-03-01), Leslie et al.
patent: 5415807 (1995-05-01), Gosselink et al.
patent: 5451341 (1995-09-01), White

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